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Finding the Fourth Proportional to 484.20, 727.14 and 264.72

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Solution

The fourth proportional to 484.20, 727.14 and 264.72 is: 397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.20 : 727.14 = 264.72 : x
  2. Step 2: Convert to fraction form
    484.20/727.14 = 264.72/x
  3. Step 3: Cross multiply
    484.20x = 727.14 × 264.72
  4. Step 4: Simplify right side
    484.20x = 192,488.50
  5. Step 5: Solve for x
    x = 192,488.50/484.20
  6. Step 6: Final answer
    x = 397.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.